GHSA-529H-VH3J-85HQ Twig: Sandbox filter, tag and function allow-list bypass when sandbox state changes between renders for a cached `Template`

Description The per-template filter, tag and function allow-list check is compiled into the checkSecurity method of each Template subclass and was invoked once from the constructor, gated by SandboxExtension::isSandboxed$source. Template instances are then cached on the Environment in...

FOSSBilling - Server-Side Template Injection

A Server-Side Template Injection SSTI vulnerability exists in FOSSBilling's template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custom payment adapters, and the stringrender API endpoint can inject arbitrary Twig...

EUVD-2026-40452

Grav CMS before 2.0.0-beta.2 contains multiple code-execution vulnerabilities. Three unsafe unserialize calls - in Scheduler\JobQueue, Framework\Cache\Adapter\FileCache, and Session - deserialize untrusted data without restricting allowed classes, enabling PHP object injection and, via a gadget...

PT-2026-54862

Name of the Vulnerable Software and Affected Versions Craft CMS versions 5.9.0 through 5.9.x Description Control panel users with entry editing permissions can execute unsandboxed Twig code, which may lead to authenticated Remote Code Execution RCE. The issue occurs during the entry saving proces...

CVE-2026-56700 Grav - Multiple Remote Code Execution Vulnerabilities via Unsafe Unserialize and Command Injection

Grav CMS before 2.0.0-beta.2 contains multiple code-execution vulnerabilities. Three unsafe unserialize calls - in Scheduler\JobQueue, Framework\Cache\Adapter\FileCache, and Session - deserialize untrusted data without restricting allowed classes, enabling PHP object injection and, via a gadget...

CVE-2026-56700

Grav CMS before 2.0.0-beta.2 contains multiple code-execution vulnerabilities. Three unsafe unserialize calls - in Scheduler\JobQueue, Framework\Cache\Adapter\FileCache, and Session - deserialize untrusted data without restricting allowed classes, enabling PHP object injection and, via a gadget...

GHSA-H8VQ-8GPG-MHCG Twig: Sandbox property allowlist bypass via the `column` filter under `SourcePolicyInterface`

Description This is a residual bypass of CVE-2026-46635 / GHSA-vcc8-phrv-43wj that only affects sandboxing enabled through SourcePolicyInterface and not the regular global sandbox mode. CoreExtension::column receives the active sandbox state via the needsissandboxed channel as a boolean...

Twig: Sandbox `__toString()` policy bypass via `Traversable` in `join` and `replace` filters

Description This is a residual bypass of CVE-2026-47732 / GHSA-pr2w-4gpj-cpq4 left after the initial fix for unguarded toString calls. It covers two related coercion points that were not caught by the original patch. Traversable in join and replace filters. SandboxExtension::ensureToStringAllowed...

GHSA-8X9C-RMQH-456C Twig: Sandbox `__toString()` policy bypass via `Traversable` in `join` and `replace` filters

Description This is a residual bypass of CVE-2026-47732 / GHSA-pr2w-4gpj-cpq4 left after the initial fix for unguarded toString calls. It covers two related coercion points that were not caught by the original patch. Traversable in join and replace filters. SandboxExtension::ensureToStringAllowed...

GHSA-5V5V-WW74-355V Twig: Sandbox `__toString()` policy bypass via dynamic mapping keys

Description This is a residual bypass of CVE-2026-47732 / GHSA-pr2w-4gpj-cpq4 left after the initial fix for unguarded toString calls. In 3.26.0 the sandbox visitor was extended to wrap every child node that its parent will string-coerce at runtime with CheckToStringNode, gated by the new...

Twig: Sandbox `__toString()` policy bypass via dynamic mapping keys

Description This is a residual bypass of CVE-2026-47732 / GHSA-pr2w-4gpj-cpq4 left after the initial fix for unguarded toString calls. In 3.26.0 the sandbox visitor was extended to wrap every child node that its parent will string-coerce at runtime with CheckToStringNode, gated by the new...

Twig: Sandbox state regression in deprecated internal wrappers in `src/Resources/core.php`

Description The 3.26.0 source-policy hardening changed the signature of CoreExtension::checkArrow to take a boolean $isSandboxed instead of an Environment, and added the same $isSandboxed argument to CoreExtension::arraySome and CoreExtension::arrayEvery. Compiled templates were updated to pass t...

PT-2026-54048

Name of the Vulnerable Software and Affected Versions Grav CMS versions prior to 2.0.0-beta.2 Description Multiple issues allow for code execution. Three unsafe unserialize calls within SchedulerJobQueue, FrameworkCacheAdapterFileCache, and Session deserialize untrusted data without restricting...

VulnCheck KEV: CVE-2026-28496

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection SSTI vulnerability in the template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custo...

CVE-2026-28496

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection SSTI vulnerability in the template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custo...

CVE-2026-28496

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection SSTI vulnerability in the template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custo...

CVE-2026-28496

CVE-2026-28496 – FOSSBilling SSTI in Twig rendering affects versions prior to 0.8.0. Administrators with access to Twig-rendering features (email templates, mass mail campaigns, custom payment adapters, and the string_render API) can inject Twig expressions, leading to information disclosure and ...

CVE-2026-28496 FOSSBilling: Server-side template injection in Twig template rendering enables information disclosure and RCE

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection SSTI vulnerability in the template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custo...

CVE-2026-28496 FOSSBilling: Server-side template injection in Twig template rendering enables information disclosure and RCE

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection SSTI vulnerability in the template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custo...

EUVD-2026-38455

FOSSBilling is a free, open-source billing and client management system. Versions prior to 0.8.0 have a Server-Side Template Injection SSTI vulnerability in the template rendering system. Administrators with access to features that render Twig templates email templates, mass mail campaigns, custo...